(This is today's bit of advice from the book Safety Toolbox.)
Following are some wake-up examples on what a comfort zone and a chaos zone is, including a clear indicator of the edges between the two. Take these to the practice table and try them. Whatever shots you find easy, competitors at a similar level find easy. What you find difficult, others at your level also find difficult.
Comfort-chaos zone, example 1
This is the standard straight-in shot. At a diamond away from the object ball, it’s easy. Try each shadow position 10 times before moving back to the next.
Comfort-chaos zone, example 2
Try the closest shooting position first. Do a set (10 tries). Record your success/failure results. Back off a half diamond on the line and repeat.
Comfort-chaos zone, example 3
These are different angles. Verify your comfort zone. You'll need this to know what an equally skilled opponent can and cannot do.
Comfort-chaos zone, example 4
Even the closest shadow ball (cue ball position) might not make this a comfort zone shot. It is important that you know.
Comfort-chaos zone, example 5
These get harder as you move back. Play with these to know your own abilities.